Sheron Kaye Cheney, 50, was found dead July 23, 1997, on a remote dirt road near Hyatt Lake in Ashland, Oregon, after a day of camping with her boyfriend, Glenn Keagle. Witnesses last saw her walking along the road between the campground and a nearby resort in the early evening; later that night her body was discovered.

Forensic examiners recorded blunt force injuries that could have resulted from a fall or from being thrown from a moving vehicle. Investigators recovered a single impact mark on her body that Keagle later admitted causing, but authorities said there was insufficient evidence to rule the death a homicide. The case remains classified as suspicious and open, with no conclusive determination about whether Cheney’s death was accidental or the result of foul play.

Anyone with information about Cheney, her movements that evening, or the area around Hyatt Lake in July 1997 is asked to come forward.